Patanjali

Patañjali (fl. 150 BC[1] or 2nd century BC[2][3]) lived in the 2nd century. He was an Indian. He wrote the first grammar of Sanskritlanguage. He also wrote books about yoga. He is also the author of the Mahabhyasa, a commentary on Katyayana's varttikas on Panini's Astadhyayi as well as an unspecified work of medicine (Ayurveda).